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<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>07有序列表</title>
</head>
<body>
    <h1>有序列表-好吃的水果</h1>
    <ol>
        <li>西瓜</li>
        <li>荔枝</li>
        <li>
            <!-- p 会加上默认的css效果，添加了上下边距 -->
            <p>芒果</p>
        </li>
    </ol>
</body>
</html>